The Brief Major arrests have been announced following a Homeland Security investigation into Mexican cartel firearms trafficking operations in Arizona and Mexico. A total of 21 defendants face 158 charges, with law enforcement seizing more than 100 firearms and over 125,000 rounds of ammunition. One person has been sentenced so far, while remaining defendants face up to 15 years in prison and $250,000 in fines per charge if convicted. Major arrests have been announced in a Homeland Security investigation spanning Arizona and Mexico into the cartel's efforts to traffic firearms. "Every single illegal firearm and round taken off the street today represents potential lives saved," said JT Stevens, Homeland Security Investigations special agent in charge.